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Contract OI history

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Jan 15, 2027 EXPIRATION

CTSH $55.00 Put

CTSH270115P00055000

Latest saved OI2,070Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CTSH $55.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,0711,0350 2026-10-09: 1,847 OI2026-10-13: 1,852 OI2026-10-14: 2,028 OI2026-10-15: 2,062 OI2026-10-16: 2,061 OI2026-10-21: 2,071 OI2026-10-23: 2,070 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CTSH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,070-1
Oct 21, 20262,071+10
Oct 16, 20262,061-1
Oct 15, 20262,062+34
Oct 14, 20262,028+176
Oct 13, 20261,852+5
Oct 09, 20261,847No prior observation